From: Chris AtLee <catlee@canada.com>
To: linux-mtd@lists.infradead.org
Subject: Re: A few questions (cramfs as root, flash permissions and JFFS2 on 2.2.18)
Date: 03 May 2002 16:17:42 -0400 [thread overview]
Message-ID: <1020457063.12077.52.camel@geb> (raw)
In-Reply-To: <1020452092.878.45.camel@geb>
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> My second question has to do with protection on the flash chip itself.
> Whenever I try to mount a jffs image I get lots of errors saying that
> Erasing failed horribly. So I tried the erase and eraseall utilities
> and get the message that I'm trying to erase a Read-Only filesystem. My
> bootloader allows me to peek and poke memory manually, so I played
> around with locking / unlocking sections of flash and it seems that I
> can lock and unlock blocks of flash just fine, it's just that they
> aren't reported correctly by the Read Configuration command...Is this
> what is meant by "Legacy lock/unlock" in the MTD debug output? MTD
> detects this at unsupported on my unit.
Ok, I fixed this problem by adding a command to mtd->unlock for the
addresses corresponding to the partition I want to be read/write. Is
this the correct solution?
Cheers,
Chris
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prev parent reply other threads:[~2002-05-03 20:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-03 18:54 A few questions (cramfs as root, flash permissions and JFFS2 on 2.2.18) Chris AtLee
2002-05-03 20:17 ` Chris AtLee [this message]
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